Lightemerald/windows-user-space-emulator
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KUSD MMIO

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momo5502
2024-11-23 19:32:14 +01:00
parent 325e8115af
commit 2e2b4ffb2f
5 changed files with 282 additions and 112 deletions
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98
src/windows-emulator/windows_emulator.cpp
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@@ -50,95 +50,6 @@ namespace
emu.write_register(x64_register::msr, &value, sizeof(value));
}
emulator_object<KUSER_SHARED_DATA> setup_kusd(x64_emulator& emu, bool use_relative_time)
{
// TODO: Fix that. Use hooks to feed dynamic data, e.g. time values
emu.allocate_memory(KUSD_ADDRESS, page_align_up(sizeof(KUSER_SHARED_DATA)), memory_permission::read);
const emulator_object<KUSER_SHARED_DATA> kusd_object{emu, KUSD_ADDRESS};
kusd_object.access([&](KUSER_SHARED_DATA& kusd)
{
kusd.TickCountMultiplier = 0x0fa00000;
kusd.InterruptTime.LowPart = 0x17bd9547;
kusd.InterruptTime.High1Time = 0x0000004b;
kusd.InterruptTime.High2Time = 0x0000004b;
kusd.SystemTime.LowPart = 0x7af9da99;
kusd.SystemTime.High1Time = 0x01db27b9;
kusd.SystemTime.High2Time = 0x01db27b9;
kusd.TimeZoneBias.LowPart = 0x3c773000;
kusd.TimeZoneBias.High1Time = -17;
kusd.TimeZoneBias.High2Time = -17;
kusd.TimeZoneId = 0x00000002;
kusd.LargePageMinimum = 0x00200000;
kusd.RNGSeedVersion = 0x0000000000000013;
kusd.TimeZoneBiasStamp = 0x00000004;
kusd.NtBuildNumber = 0x00006c51;
kusd.NtProductType = NtProductWinNt;
kusd.ProductTypeIsValid = 0x01;
kusd.NativeProcessorArchitecture = 0x0009;
kusd.NtMajorVersion = 0x0000000a;
kusd.BootId = 0x0000000b;
kusd.SystemExpirationDate.QuadPart = 0x01dc26860a9ff300;
kusd.SuiteMask = 0x00000110;
kusd.MitigationPolicies.MitigationPolicies = 0x0a;
kusd.MitigationPolicies.NXSupportPolicy = 0x02;
kusd.MitigationPolicies.SEHValidationPolicy = 0x02;
kusd.CyclesPerYield = 0x0064;
kusd.DismountCount = 0x00000006;
kusd.ComPlusPackage = 0x00000001;
kusd.LastSystemRITEventTickCount = 0x01ec1fd3;
kusd.NumberOfPhysicalPages = 0x00bf0958;
kusd.FullNumberOfPhysicalPages = 0x0000000000bf0958;
kusd.TickCount.TickCount.LowPart = 0x001f7f05;
kusd.TickCount.TickCountQuad = 0x00000000001f7f05;
kusd.Cookie = 0x1c3471da;
kusd.ConsoleSessionForegroundProcessId = 0x00000000000028f4;
kusd.TimeUpdateLock = 0x0000000002b28586;
kusd.BaselineSystemTimeQpc = 0x0000004b17cd596c;
kusd.BaselineInterruptTimeQpc = 0x0000004b17cd596c;
kusd.QpcSystemTimeIncrement = 0x8000000000000000;
kusd.QpcInterruptTimeIncrement = 0x8000000000000000;
kusd.QpcSystemTimeIncrementShift = 0x01;
kusd.QpcInterruptTimeIncrementShift = 0x01;
kusd.UnparkedProcessorCount = 0x000c;
kusd.TelemetryCoverageRound = 0x00000001;
kusd.LangGenerationCount = 0x00000003;
kusd.InterruptTimeBias = 0x00000015a5d56406;
kusd.QpcBias = 0x000000159530c4af;
kusd.ActiveProcessorCount = 0x0000000c;
kusd.ActiveGroupCount = 0x01;
kusd.QpcData.QpcData = 0x0083;
kusd.QpcData.QpcBypassEnabled = 0x83;
kusd.TimeZoneBiasEffectiveStart.QuadPart = 0x01db276e654cb2ff;
kusd.TimeZoneBiasEffectiveEnd.QuadPart = 0x01db280b8c3b2800;
kusd.XState.EnabledFeatures = 0x000000000000001f;
kusd.XState.EnabledVolatileFeatures = 0x000000000000000f;
kusd.XState.Size = 0x000003c0;
if (use_relative_time)
{
kusd.QpcFrequency = 1000;
}
else
{
kusd.QpcFrequency = std::chrono::steady_clock::period::den;
}
constexpr std::wstring_view root_dir{L"C:\\WINDOWS"};
memcpy(&kusd.NtSystemRoot.arr[0], root_dir.data(), root_dir.size() * 2);
kusd.ImageNumberLow = IMAGE_FILE_MACHINE_I386;
kusd.ImageNumberHigh = IMAGE_FILE_MACHINE_AMD64;
memset(&kusd.ProcessorFeatures, 0, sizeof(kusd.ProcessorFeatures));
// ...
});
return kusd_object;
}
uint64_t copy_string(x64_emulator& emu, emulator_allocator& allocator, const void* base_ptr, const uint64_t offset,
const size_t length)
{
@@ -262,13 +173,16 @@ namespace
return canonical(absolute(path).parent_path()).make_preferred();
}
void setup_context(process_context& context, x64_emulator& emu, const emulator_settings& settings)
void setup_context(windows_emulator& win_emu, const emulator_settings& settings)
{
auto& emu = win_emu.emu();
auto& context = win_emu.process();
setup_gdt(emu);
context.registry = registry_manager(settings.registry_directory);
context.kusd = setup_kusd(emu, settings.use_relative_time);
context.kusd.emplace(win_emu, settings.use_relative_time);
context.base_allocator = create_allocator(emu, PEB_SEGMENT_SIZE);
auto& allocator = context.base_allocator;
@@ -795,7 +709,7 @@ void windows_emulator::setup_process(const emulator_settings& settings)
auto& context = this->process();
context.module_manager = module_manager(emu); // TODO: Cleanup module manager
setup_context(context, emu, settings);
setup_context(*this, settings);
context.executable = context.module_manager.map_module(settings.application, this->logger);